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Finding the Fourth Proportional to 252,269.76, 348,125.76 and 139,090.56

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Solution

The fourth proportional to 252,269.76, 348,125.76 and 139,090.56 is: 191,941.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,269.76 : 348,125.76 = 139,090.56 : x
  2. Step 2: Convert to fraction form
    252,269.76/348,125.76 = 139,090.56/x
  3. Step 3: Cross multiply
    252,269.76x = 348,125.76 × 139,090.56
  4. Step 4: Simplify right side
    252,269.76x = 48,421,006,908.83
  5. Step 5: Solve for x
    x = 48,421,006,908.83/252,269.76
  6. Step 6: Final answer
    x = 191,941.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.